feat(coturn): initial docker compose

coturn/docker-compose.yml

@@ -0,0 +1,13 @@
+services:
+  coturn:
+    network_mode: host
+    image: coturn/coturn:4.6.2
+    container_name: coturn
+    user: root
+    volumes:
+      - ./config:/etc/coturn:ro
+      - /var/lib/acme/turn.stitchy.moe:/etc/letsencrypt/live/turn.stitchy.moe:ro
+      - type: tmpfs
+        target: /var/lib/coturn
+
+    restart: unless-stopped